Delta MCS-1800 Specifications Page 30

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NEW!
POWER MONITORING & PROTECTION
940
NEW!
POWER MONITORING & PROTECTION
16
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
kele.com888-397-5353 USA
CURRENT-OPERATED SWITCHES
CS1A, CS1150A-LED, SCS1.5A, SCS1150A-LED
Bldg Automation
System, Energy
Mgmt System,
1-135V
VAC/VDC max
0.3A
Relay, Lamp,
Small Contactor,
or Similar AC
or DC Load
Terminals not
polarity
sensitive
Digital
Input
Terminals not
polarity
sensitive
Monitored Conductor
Monitored Conductor
WIRING
INSTALLATION / ADJUSTMENT
ORDERING INFORMATION
MODEL DESCRIPTION
CS1A Solid-core current switch, fixed 1.0A trip, normally open
SCS1.5A Split-core current switch, fixed 1.25A trip, normally open
CS1150A-LED Solid-core current switch, adjustable, normally open with LED
SCS1150A-LED Split-core current switch, adjustable, normally open with LED
SC250-NC Split-core current switch, adjustable, normally closed with LED
Sensors can be mounted in any position or hung directly on wires. For larger mounting screws, drill out mounting holes. Use up to
#14 AWG copper wire to terminals. Tighten to 7 in-lb torque.
Adjustment for CS1150A and SCS1150A
1. With the sensor wired as shown, use a voltmeter across the sensor contacts. A full voltage across the contact confirms the
switch is open. Turn on the motor or other load being monitored.
2. The sensor is shipped with the multiturn adjustment set to the most sensitive position. If the sensor now operates, turn the
adjustment counter-clockwise (CCW) until the operation reverses. The meter will indicate this action.
3. Now, turn the adjustment clockwise (CW) until the sensor just operates its controlled circuit. It is desirable to turn the
adjustment slightly beyond this threshold point to provide a margin for normal current variations.
Status LED Indicator
1. Light: Sufficient current is flowing to opposite device.
2. No light: Current is either OFF or below the bottom of the range.
Application Notes
1. Make sure that switched current (connected to terminals) is limited to 0.3A continuous. Switched voltage should be no higher
than 135 VAC/VDC.
2. Important! Monitoring excessive current can damage the sensor. Make sure monitored currents do not exceed maximum
ratings.
3. For proper operation of the split-core model, make certain that the mating surfaces of the magnetic core are clean.
Troubleshooting
Problem Probable Causes and Corrections
1. Sensor does not switch at all, Adjustment pot is probably backed off completely, which disables the sensor.
regardless of current level. See Installation/Adjustment immediately above for instructions.
Verify that mating surfaces of the split core are free of foreign particles.
2. Adjustment has no stops; The multiturn adjustment pot has a slip-clutch that prevents damage at either end of its
keeps turning. rotation.
March 2014
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